Grid for the outlets of kitchen sinks or the like



Nov. 30, 1954 I. VlNQKOR 2,695,411

GRID FOR THE OUTLETS OF KITCHEN 'SINKS OR THE LIKE Filed 001;. 21, 1950 Inventor Unma MW By @1;

Attorney United States Patent GRID FOR THE OUTLETS 0F KITCHEN SINKS OR THE LIKE Isaac Vinokor, Haifa, Israel Application October 21, 1950, Serial No. 191,355

1 Claim. (Cl. 4-292) bottom of the cup may be perforated or not perforated.

The perforations in the said lateral wall may be substituted by narrow vertical slots. In distinction to the the common grids, the water can now flow without interruption through the perforations of the lateral wall of the cup and of those of the flange into the draining pipe even if the cup is partly or wholly filled with the retained matter. The water then flows through the free cylindrical space between the lateral wall of the cup and the inner wall of the outlet of the sink. To provide that there always be such a free space, the diameter of the cup ought to be smaller than that of the outlet and it is therefore advisable to provide on the outer side of said wall of the cup some projections, such projections may be provided on the inner wall of the common metallic socket which is adapted to receive a stopper and is fitted into the outlet of the sink, or the lateral wall may be vertically undulated, the crests of the outer bows of the undulation to be adjacent to the inner wall of the socket while the crests of the inner bows are distant from said socket and are provided with the vertical slots. The flange of the cup may lie flat on the bottom of the sink or be partly or wholly bent to form an elevated inverted channel around the cup. In the case of the flat flange of the cup an elevated rim may be provided on the flange of said socket.

The objectionable matter floating in the sewage is intercepted and subsides in the depression of the central cup, while the coarse and heavier particles are retained by the inverted channel surmounting the flange and accumulate on the flat part of the flange seated on the bottom of the sink. By lifting and shaking the grid, the latter is freed from the retained matter and the clogging of the draining pipe is prevented. There is no obstacle to a free placing and moving of the crockery on the bottom of the sink. Thanks to the assured rapid running out of the water, there is no chance for the soap and fat contained therein to subside on the walls of the sink and on the crockery within the sink.

The invention is illustrated in the drawing by way of example.

Fig. 1 shows a sink fitted with the new grid m a perspective vertical sectional view.

Figs. 2 and 3 show two embodiments of the grid in a vertical section and on a larger scale.

Figs. 4 and 5 show a grid with an. undulated and slotted inner wall of the cup.

The kitchen sink 1 shown, usually of china or clay, is of common construction. Into its outlet 2 is fitted a metallic socket 3 adapted to receive a stopper. The outlet spout 2 leads into a drain pipe.

According to Figs. 1 and 2, the new grid comprises a cup formed by a cylindrical or slightly conical perforated wall 5 and a bottom 5'. The upper rim of the cylindrical wall constitutes an inverted perforated channel 6 which is surrounded by a flat flange 7 situated below that channel and to be seated on the bottom of the sink or as shown, on the flange of the socket 3. The cylindrical wall 5 has lateral projecting ribs 8 and its diameter is smaller than the normal inner diameter of the spout 2 so that a free cylindrical space exists between wall 5 and spout 2 or socket 3 through which the water can run out, even if the bottom of the cup is covered with a layer of matter or is altogether not perforated. The water is then drained oif through the perforations of the lateral wall of the cup and of the channel 6.

According to Fig. 3 the grid has a flat flange 7' and projections 9 and 10 are arranged on the inner wall and on the flange of the socket 3'.

According to the embodiment shown in Figs. 4 and 5 the lateral wall 5 of the cup is undulate-d and provided with narrow vertical slots 11 on the inner bows of the undulation. Between the latter bows and the wall of the socket 3 free spaces are created into which the water can pass through said slots and then run out. Grids with slots in the lateral wall of the cup are easier to manufacture than grids with perforations in this wall.

What I claim is:

Grid for the outlet of kitchen sinks or the like having a depressed perforated cup adapted to enter into the outlet of the sinks, lateral projections on the circumferential wall of the cup, so that a circular gap is formed between the cup and the outlet of the sink, a perforated rim of the cup having the shape of an inverted channel, and a flat flange adapted to rest on the bottom of the sink and surrounding this channel.

References Cited in the file of this: patent UNITED STATES PATENTS Number Name Date 287,246 Coomber Oct. 23, 1883 945,457 Hardman Jan. 4, 1910 1,690,207 Reed Nov. 6, 1928 1,706,000 Settles Mar. 19, 1929 1,756,290 Hibner Apr. 29, 1930 2,019,799 Seguin Nov. 5, 1935 FOREIGN PATENTS Number Country Date 247,084 Great Britain Feb. 11, 1926 

